Quartz pebble
Silicon dioxide (SiO2)
Category
Browse sedimentary or igneous specimens identified by the Rock Identifier community.
Quartz pebble
Silicon dioxide (SiO2)
Banded Gneiss
Gneiss (High-grade regional metamorphic rock)
River Cobble (Gneiss/Schist mix)
Foliated Metamorphic Rock (Gneissic/Schistose)
Clear Quartz
Silicon Dioxide (SiO2)
Quartz (Clear Quartz)
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Potassium Feldspar
Orthoclase (KAlSi3O8)
Quartz
Silicon Dioxide (SiO2)
Clear Quartz Crystal Cluster
Silicon Dioxide (SiO2)
Orange Calcite
Calcite (CaCO3)
Quartz
Quartz (Silicon Dioxide, SiO2)
Banded Agate (Chert/Chaldcedony)
Silicon Dioxide (SiO₂)
Gneiss
Gneiss
Hematite with Magnetite
Iron Oxide (Fe2O3)
Gneiss
Gneiss
Quartz
Silicon Dioxide (SiO2)
Yellow Chalcedony (Agate Pebble)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Garnet (Almandine variety)
Almandine Garnet (Fe3Al2(SiO4)3)
Auriferous Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Quartz (Agate/Chalcedony variety)
Silicon Dioxide (SiO2)
Quartz (Clear Quartz)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Gneiss
Gneiss
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Milky/Common Quartz)
Silicon Dioxide (SiO2)
Gneiss
Gneissic Metamorphic Rock
Quartz / Common Agate
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Kambaba Jasper
Rhyolite (Volcanic rock) or Stromatolite (debated)
Gneiss
Gneiss
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Pyrite
Iron Disulfide (FeS2)
Gneiss
Gneiss
Pyrite
Iron Sulfide (FeS2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz / Quartz Geode fragment
Silicon Dioxide (SiO2)